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A novel silver-doped nickel oxide hole-selective contact for crystalline silicon heterojunction solar cells

Frontiers of Chemical Science and Engineering 2024年第2期18卷 93-101页

作者： Junfeng Zhao Xudong Yang Zhongqing Zhang Shengpeng Xie Fangfang Liu Anjun Han Zhengxin Liu Yun Sun Wei Liu Key laboratory of Photoelectronic thin film Devices and Technology of Tianjin Engineering Research Center of Thin Film Photoelectronic TechnologyInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University(Ministry of Education)Tianjin 300350China Shanghai Institute of Microsystem and Information Technology Chinese Academy of SciencesShanghai 201800China

Based on its band alignment,p-type nickel oxide(NiO_(x))is an excellent candidate material for hole transport layers in crystalline silicon heterojunction solar cells,as it has a smallΔEV and largeΔEC with crystalline ***,to overcome the poor hole selectivity of stoichiometric NiO_(x) due to its low carrier concentration and conductivity,silver-doped nickel oxide(NiO_(x):Ag)hole transport layers with high carrier concentrations were prepared by co-sputtering high-purity silver sheets and pure NiO_(x) *** improved electrical conductivity of NiO_(x) was attributed to the holes generated by the Ag^(+)substituents for Ni^(2+),and moreover,the introduction of Ag^(+)also increased the amount of Ni^(3+)present,both of which increased the carrier concentration in NiO_(x).Ag^(+)doping also reduced the c-Si/NiO_(x) contact resistivity and improved the hole-selective contact with NiO_(x).Furthermore,the problems of particle clusters and interfacial defects on the surfaces of NiO_(x):Ag films were solved by UV-ozone oxidation and high-temperature annealing,which facilitated separation and transport of carriers at the c-Si/NiO_(x) *** constructed c-Si/NiO_(x):Ag solar cell exhibited an increase in open-circuit voltage from 490 to 596 mV and achieved a conversion efficiency of 14.4%.

关键词： band alignment nickel oxide hole transport layer silver-doped nickel oxide UV-ozone

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Elucidating the structure-activity relationship of Cu-Ag bimetallic catalysts for electrochemical CO_(2) reduction

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Journal of Energy Chemistry 2024年第6期93卷 345-351,I0009页

作者： Qining Huang Lili Wan Qingxuan Ren Jingshan Luo Institute of Photoelectronic thin film Devices and Technology State Key Laboratory of Photovoltaic Materials and CellsKey Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinMinistry of Education Engineering Research Center of Thin Film Photoelectronic TechnologyNankai UniversityTianjin 300350China Frontiers Science Center for New Organic Matter Nankai UniversityTianjin 300071China Haihe laboratory of Sustainable Chemical Transformations Tianjin 300192China

Developing bimetallic catalysts is an effective strategy for enhancing the activity and selectivity of electrochemical CO_(2) reduction reactions,where understanding the structure-activity relationship is essential for catalyst ***,we prepared two Cu-Ag bimetallic catalysts with Ag nanoparticles attached to the top or the bottom of Cu *** tested in a flow cell,the Cu-Ag catalyst with Ag nanoparticles on the bottom achieved a faradaic efficiency of 54%for ethylene production,much higher than the catalyst with Ag nanoparticles on the *** catalysts were further studied in the H-cell and zero-gap MEA *** was found that placing the two metals in the intensified reaction zone is crucial to triggering the tandem reaction of bimetallic *** work elucidates the structure-activity relationship of bimetallic catalysts for CO_(2) reduction and demonstrates the importance of considering both catalyst structures and cell characteristics to achieve high activity and selectivity.

关键词： Electrochemical CO_(2)reduction Bimetallic catalyst Cu-Ag Structure-activity relationship

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Promoted monolithic perovskite/organic tandem solar cells through elaborate manipulation of light transmission and carrier tunneling in interconnect junction

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Science China Chemistry 2024年第9期67卷 3131-3139页

作者： Rongbo Wang Jiawei Zhang Juntao Zhao Ya Wang Yi Ding Ying Zhao Xiaodan Zhang Guofu Hou Institute of Photoelectronic thin film Devices and Technology Renewable Energy Conversion and Storage CenterSolar Energy Conversion CenterNankai UniversityTianjin 300350China Key laboratory of Photoelectronic thin film Devices and Technology of Tianjin Tianjin 300350China Engineering research Center of thin film Photoelectronic Technology of Ministry of Education Tianjin 300350China State Key laboratory of Photovoltaic Materials and Solar Cells Tianjin 300350China

Monolithic perovskite/organic tandem solar cells(TSCs)have emerged as promising thin film solar *** is recognized that interconnect junction plays a pivotal role in tandem ***,wide bandgap Cs_(0.25)FA_(0.75)Pb(I_(0.6)Br_(0.4))_(3)perovskite top-cell and narrow bandgap PM6:Y6:PC_(61)BM ternary organic bottom-cell were integrated in this study with several kinds of thin metal interconnect layers,which provides feasibility to elaborately manipulate light transmission and carrier tunneling process in interconnect *** is confirmed that,in comparison with Au,employing an Ag interconnect layer elevates integrated transmittance of light in longer wavelength regions,mainly because of the alleviated screening effect with a lower free electron concentration,which offers sufficient light harvest for the ***,established energy barriers with moderate height afford convenient extraction and recombination for both holes and ***,the performance of TSCs is promoted ***,an innovative Ag/Au double interconnect layer is proposed accordingly,which can preserve exceptional conductivity and light transmission and further reduce barrier height,especially for hole tunneling,by optimizing the band alignment between the interconnect layer and ***,the monolithic perovskite/organic TSC with a striking efficiency of 23.26% is *** a word,this study can pave a general approach toward high-performance TSCs integration.

关键词： tandem solar cells band alignment perovskite organic solar cells interconnect junction

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A neuromorphic device mimicking synaptic plasticity under different body fluid K^(+) homeostasis for artificial reflex path construction and pattern recognition

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Fundamental research 2024年第2期4卷 353-361页

作者： Lu Yang Yao Ni Chengpeng Jiang Lu Liu Song Zhang Jiaqi Liu Lin Sun Wentao Xu Institute of Photoelectronic thin film Devices and Technology Key Laboratory of Optoelectronic Thin Film Devices and Technology of TianjinEngineering Research Center of Thin Film Photoelectronic TechnologyMinistry of EducationNankai UniversityTianjin 300350China Shenzhen research Institute of Nankai University Shenzhen 518000China

The ionic environment of body fluids influences nervous functions for maintaining homeostasis in organisms and ensures normal perceptual abilities and reflex *** reflex activities,such as limb movements,are closely associated with potassium ions(K+).In this study,we developed artificial synaptic devices based on ion concentration-adjustable gels for emulating various synaptic plasticities under different K+concentrations in body *** addition to performing essential synaptic functions,potential applications in information processing and associative learning using short-and long-term plasticity realized using ion concentration-adjustable gels are *** synaptic devices can be used for constructing an artificial neural pathway that controls artificial muscle reflex activities and can be used for image pattern *** tests show a strong relationship with ion *** devices could be applied to neuromorphic robots and human-machine interfaces.

关键词： Nervous regulation Artificial synaptic device Ion gel Ion homeostasis Artificial reflex pathway

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Co-electrolysis of ethylene glycol and carbon dioxide for formate synthesis

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Science China Chemistry 2024年第5期67卷 1539-1544页

作者： Dongfeng Du Fusong Kang Shiru Yang Bin Shao Jingshan Luo Institute of Photoelectronic thin film Devices and Technology State Key Laboratory of Photovoltaic Materials and CellsKey Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinMinistry of Education Engineering Research Center of Thin Film Photoelectronic TechnologyNankai UniversityTianjin 300350China Haihe laboratory of Sustainable Chemical Transformations Tianjin 300192China Frontiers Science Center for New Organic Matter Nankai UniversityTianjin 300071China College of Electronic Information and Optical Engineering Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network TechnologyNankai UniversityTianjin 300350China

Co-electrolysis of waste plastics and carbon dioxide(CO_(2)) into value-added chemicals or fuels is a promising pathway for a sustainable society, but efficient and selective conversion remains a challenge. Herein, a gold-mediated nickel hydroxide(Au/Ni(OH)_(2)) is developed to oxidize waste plastic-derived ethylene glycol(EG) into formate. In-situ electrochemical experiments and theoretical results reveal that the introduction of Au favors the redox properties and EG adsorption behavior of Ni(OH)_(2). The Au/Ni(OH)_(2) catalyst shows an excellent formate selectivity of >90% at high current densities of above 100 m A cm^(-2). When coupled with sputtered bismuth(Bi) cathode for CO_(2) reduction, a high formate Faradic efficiency(FE) of 188.2% at 200 m A cm^(-2)and a good formate productivity of 7.33 mmol m^(-2)s^(-1)at 10 A are obtained in a flow cell and a zero-gap membrane electrode assembly(MEA) cell, respectively. This work demonstrates a promising strategy to convert waste plastics and CO_(2) into valuable products.

关键词： waste plastic upcycling ethylene glycol oxidation carbon dioxide reduction electrocatalysis formate synthesis

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Progress in metal oxide-based electrocatalysts for sustainable water splitting

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Materials Reports(Energy) 2024年第3期4卷 19-34页

作者： Aasiya S.Jamadar Rohit Sutar Susmita Patil Reshma Khandekar Jyotiprakash B.Yadav Vacuum Techniques and thin film laboratory USICShivaji UniversityKolhapur416004MaharashtraIndia

Metal oxide-based electrocatalysts are promising alternatives to platinum group metals for water splitting due to their low cost,abundant raw materials,and impressive *** review covers recent progress in various metal oxides tailored for hydrogen and oxygen evolution reactions,discussing their crystal structure,composition,and surface modification influence on *** like surface engineering,doping,and nanostructuring are evaluated for enhancing catalytic activity and *** key considerations for commercialization are highlighted,emphasizing ongoing research,innovation,and future scope to drive widespread adoption of water-splitting technology for a cleaner and sustainable future.

关键词： Metal oxide HER OER Electrocatalyst Overall water spilling

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Sm^(2+)ions boost ammonia electrooxidation reaction on samarium oxide anode for hydrogen generation in non-aqueous electrolyte

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Nano research 2024年第7期17卷 5856-5862页

作者： Xingyu Liu Xue Yang Han Sun Zekai Yang Haijun Chen Tianjin Key laboratory of Optoelectronic thin film Devices and Technology College of Electronic Information and Optical EngineeringNankai UniversityTianjin 300350China

Ammonia has garnered recognition as a zero-carbon fuel due to its high-density hydrogen storage capacity and its convenience for storage and *** address the challenges associated with the direct usage of ammonia,the development of NH_(3)-to-H_(2)conversion technologies has emerged as a promising and effective ***,we present for the first time that crystallized Sm_(2)O_(3−x)electrodes demonstrate high and stable electrocatalytic activities,including N_(2)evolution rate and Faradaic efficiency,for ammonia electrolysis in a non-aqueous *** was observed that Sm^(2+)ions in samarium oxide play an indispensable role in the ammonia electrooxidation reaction on the ***,the mechanism of ammonia electrooxidation has also been elucidated,laying the foundation for a better understanding of the relationship between local structure and electrochemical properties in order to facilitate research on Pt-free electrocatalysts for the electrolysis of ammonia into H_(2).

关键词： NH_(3)-to-N_(2)conversion ammonia electrooxidation reaction ammonia electrolysis non-aqueous electrolyte samarium oxide

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Universal Encapsulation Adhesive for Lead Sedimentation and Attachable Perovskite Solar Cells with Enhanced Performance

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Energy & Environmental Materials 2024年第03期7卷 307-314页

作者： Xuehao Zhu Haoyu Cai Cong Bai Zhengzhe Wu Wenjian Shen Yiming Xiong Juan Zhao Fuzhi Huang Yibing Cheng Jie Zhong research Centre for Advanced thin film Photovoltaics State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of Technology Foshan Xianhu laboratory of the Advanced Energy Science and Technology Guangdong laboratory School of Automobile Engineering Wuhan University of Technology

In this work,a modified polyurethane adhesive (PUA) was prepared to realize a convenient encapsulation strategy for lead sedimentation and attachable perovskite solar cells (A-PSCs).The modified PUA can completely self-heal within 45 min at room temperature with an efficient lead ionblocking rate of 99.3%.The PUA film can be coated on a metal electrode with slight efficiency improvement from 23.96%to 24.15%.The thermal stability at 65℃and the humidity stability at 55%relative humidity (RH)are superior to the devices encapsulated with *** PUA film has strong adhesion to the flexible substrate and the initial efficiency of the flexible perovskite module (17.2%) encapsulated by PUA remains 92.6%within 1825 *** results suggest that PUA encapsulation is universal for rigid and flexible PSCs with enhanced stability and low lead ***,it was found that flexible PSCs can be well attached to various substrates with PUA,providing a facile route for the A-PSCs in various scenarios without additional encapsulation and installation.

关键词： adhesive attachable device flexible module lead leakage polyurethane

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Revealing the role of calcium ion intercalation of hydrated vanadium oxides for aqueous zinc-ion batteries

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Journal of Energy Chemistry 2024年第8期95卷 9-19,I0001页

作者： Tao Zhou Xuan Du Guo Gao Key laboratory for thin film and Micro Fabrication of the Ministry of Education School of Sensing Science and EngineeringSchool of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Exploring suitable high-capacity V_(2)O_(5)-based cathode materials is essential for the rapid advancement of aqueous zinc ion batteries(ZIBs).However,the typical problem of slow Zn^(2+)diffusion kinetics has severely limited the feasibility of such *** this work,unique hydrated vanadates(CaVO,BaVO)were obtained by intercalation of Ca^(2+)or Ba^(2+)into hydrated vanadium *** the CaVO//Zn and BaVO//Zn batteries systems,the former delivered up to a 489.8 mAh g^(-1)discharge specific capacity at 0.1 A g^(-1).Moreover,the remarkable energy density of 370.07 Wh kg^(-1)and favorable cycling stability yard outperform BaVO,pure V_(2)O_(5),and many reported cathodes of similar ionic intercalation *** addition,pseudocapacitance analysis,galvanostatic intermittent titration(GITT)tests,and Trasatti analysis revealed the high capacitance contribution and Zn^(2+)diffusion coefficient of CaVO,while an in-depth investigation based on EIS elucidated the reasons for the better electrochemical performance of ***,ex-situ XRD,XPS,and TEM tests further demonstrated the Zn^(2+)insertion/extraction and Zn-storage mechanism that occurred during the cycle in the CaVO//Zn battery *** work provides new insights into the intercalation of similar divalent cations in vanadium oxides and offers new solutions for designing cathodes for high-capacity aqueous ZIBs.

关键词： Aqueous zinc ion batteries Cathode materials Ion pre-intercalation Vanadium oxides Energy storage mechanism

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High performance wide bandgap perovskite solar cell with low V_(OC) deficit less than 0.4 V

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Journal of Energy Chemistry 2024年第4期91卷 313-322页

作者： Haikuo Guo Fuhua Hou Xuli Ning Xiaoqi Ren Haoran Yang Rui Liu Tiantian Li Chengjun Zhu Ying Zhao Wei Li Xiaodan Zhang School of Physical Science and Technology Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous RegionInner Mongolia UniversityHohhot 010021Inner MongoliaChina Institute of Photoelectronic thin film Devices and Technology of Nankai University Key Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinSolar Energy Research Center of Nankai UniversityTianjin 300350China State Key laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430000HubeiChina

Wide bandgap perovskite solar cells(PSCs)have attracted significant attention because they can be applied to the top cells of tandem solar ***,high open-circuit voltage(V_(OC))deficit(>0.4 V)result from poor crystallization and high non-radiative recombination losses become a serious limitation in the pursuit of high ***,the relevance between different Pbl_(2)proportions and performance parameters are revealed through analysis of surface morphology,residual stress,and *** increase of Pbl_(2)proportion promotes crystal growth and reduces the work function of the perovskite film surface and promotes the energy level alignment with the carrier transport layer,which decreased the V_(OC)***,residual PbI_(2)exacerbated the stress level of perovskite film,and the resulting lattice disorder deteriorated the photostability of the ***,after the synergistic passivation of residual PbI_(2)and PEAI,the V_(OC)achieves 1.266 V and V_(OC)deficit is less than 0.4 V,the record value in wide bandgap PSCs.

关键词： Pb management Perovskite solar cell Strain Wide bandgap Stability

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